Mechanical movement.



'No. 858,873. PATENTED JULY 2, 1907. w. B. KIRBY.

MECHANICAL MOVEMENT.

APPLICATION TILED JULYB, 1906.-

- INVENTO)? 771 22 iamliffiz'y M I/ WITNESSES ATTORNEY-Sf WILLIAMBUOKINGHAM KIRBY, OF WELLINGTON, TEXAS.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented July 2, 1907.

Application filed July 5, 1906. Serial No. 324,767.

To all whom it may concern:

Be it known that I, WILLIAM BUCKINGHAM KIRBY, a citizen of the UnitedStates, and a resident of Wellington, in the county of Oollingsworth andState of Texas, have invented a new and Improved Mechanical Movement, ofwhich the following is a full, clear, and exact description.

My invention relates to mechanical movements, my more particular objectbeing to provide a movement for use upon mechanical motors to beemployed, for instance, upon well pumps.

My improved mechanical movement increases'the power of the motor so thatless energy than usual is required in operating the motor.

My improved construction also presents certain advantages ofconstruction hereinafter described.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which the figure represents a side elevation ofmy improved mechanical movement as applied to a mechanical motor.

The motor frame is shown at 1, and at-2, 3, 4, 5 are bearings forsupporting the various revoluble shafts.

'The governor stem is shown at 6, and at 7 is a bracket which assists insupporting this stem and its accompanying parts. One of the gear wheelsis shown at 7. At 8 is a worm wheel used for winding the motor. For thispurpose a worm 9 is mounted upon a winding shaft 10 which may be turnedby hand. This worm is revoluloly connected with a latch 11, the latterbeing pivoted at 12. By turning the latch 11 the worm 9 may be thrownout of mesh with the wheel 8 so that there may be no connection betweenthe worm 9 and the wheel 8 except when the operator desires to wind themotor. A pin 13 is adapted to support the latch 11 and serves as aspacing member for preventing the worm 9 from binding upon the gear 8.At 14 is a revoluble disk provided with holes 15 spaced at differentdistances from its center so as to vary the relations of power and speedwithin certain limits. A link 16 is pivoted to the disk 14 and to alever 17, the latter being pivoted at 18 upon the frame or casing 1. Theopposite end of the lever 17 is connected by a link 19 with anotherlever 20. This I lever is fulcrumed at 21 and is provided with a slot22.

A pin 23 passes through this slot into the adjacent end of another lever24. This lever is pivoted at 25 and is provided with a weight 26slidably adjustable thereon. This weight is provided with a setscrew 27whereby it may be moved to different distances from the pivot 25 so asto vary the virtual effect of the weight. A pitman 28 is connected withthe pivot 25 and forms a part of a pump 29 which may extend downwardlyinto a well, if desired.

The operation of my device is as follows :Power being communicated tothe revoluble disk 14 the lever 17 is rocked upon its fulcrum or pivot18 and is thence communicated by the link 19 to the lever 20, and fromthence to the lever 24. The pitman 28 and other movable parts connectedtherewith and serving to pull downward by their weight upon the lever 24are exactly balanced by the weight 26. The purpose of making the weight26 adjustable upon the lever 24 is to enable the weight to exactlycounter-balance the gravitational effect of the parts depending fromthis lever, together with the water that is to be lifted by the pump.When the motor is actuated there is a positive movement between theweight 26, the pitman 28 and other movable parts connected therewith, sothat when the weight 26 ascends the other parts mentioned descend, andvice versa. By thus balancing the weight 26 against the water and themovable parts immediately concerned in raising it much less power isrequired to drive the motor than would ordinarily be deemed necessary.

As an independent proposition, the adjustment of the Weight 26 upon thelever 24 is a matter of great con-.

venience, for the reason that the water or other load to be raised mayvary in weight, owing to the fact that the raising takes place through agreater altitude, and upon this account it is convenient to have theweight 26 adjustable, so that there may be no undue lost motion, andthat the distribution of the strains and of the energy may be renderedas uniform as possible.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:-

A device of the character described, comprising a reciprocating member,a pin connected therewith, a lever provided with a slot through whichsaid pin extends, a weight connected with said lever and adapted tocounterbalance said reciprocating member and the water or the like beingraised thereby, a second lever provided with a slot through which saidpin extends, said second lever being fulcrumed intermediate its ends, athird lever arranged above the second lever and substantially paralleltherewith, sald third lever being fulcrumed intermediate its ends,driven mechanism connected with one of the ends of said'third lever, anda link connecting the free ends of said second lever and said thirdlever. I

.In testimony whereof I have signed my name to thisspecificatio'n in thepresence of two subscribing witnesses.

WILLIAM BUCKINGI-IAM KIRB Y.

Witnesses:

c. N. MCCLASKEY, O. L. CONCII.

